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You must observe the following for a cooling water connection:
Danger
-
If you set the cooling water release for temperatures above 100°C and then
open the upstream cooling water manual valve, hot steam with relatively high
pressure can escape from the return line of the cooling water connection,
depending on the water pressure / water flow. We recommend water input
temperatures of 12°C…25°C and a water pressure of 2 to max. 4 bar.
Therefore, only use suitable,
temperature stable
hoses (e.g. tank hoses) and
screw connections. Make sure that a pressure surge in the return line will not
pose a danger by the respective measures (e.g. fixed pipes, attaching the hoses).
Please also be aware that very hot water will still be discharged after the vapor
phase (100°C>T>60°C). There will be a danger of burns throughout this entire
phase.
-
Due to the relatively high water temperatures (>60°C) the hoses / pipes can
calcify (also internally) depending on the water quality. Use the appropriate
measures (e.g. regular decalcification) to ensure that you will not be limited in
any way.
Activation of the cooling water release
The cooling water release is activated by an internal solenoid valve. The standard
application temperature is preset to 95°C and is reset to 95°C during the subsequent
restart after the operating temperature has been changed and the tempering device has
been switched off. The setting of the operating temperature takes place in the main
menu item
Protection functions->cooling water release
.
Example: Compensation of self-heating to be able to work at a prerun temperature of
40°C.
Set the cooling water release to e.g. 95°C. Then start the tempering process. Set the
nominal value to 40°C. Open the upstream cooling water manual valve far enough to
achieve a satisfactory tempering result. After concluding the tempering task, switch the
tempering off and close the upstream cooling water manual valve
Example: Temperature reduction from 95°C to 40°C to remove tempered goods from
the reactor core.
The tempering proces runs with a nominal value = actual value = 95°C. Set the
cooling water release to e.g. 95°C. Set the nominal value to e.g. 35°C. Open the
upstream cooling water manual valve. After the prerun temperature has reached 40°C,
you can conclude the tempering process and close the upstream cooling water manual
valve.
